An observable class for the forward-backward asymmetry in \(e^+ e^-\to Z\to \tau^+ \tau^-\) at the \(Z\) pole. More...

#include <AFBlepton.h>

Inheritance diagram for AFBtau:

Detailed Description

An observable class for the forward-backward asymmetry in \(e^+ e^-\to Z\to \tau^+ \tau^-\) at the \(Z\) pole.

Author: HEPfit Collaboration

Copyright: GNU General Public License

This class is used to compute the forward-backward asymmetry for an \(e^+ e^-\to Z\to \tau^+ \tau^-\) process at the \(Z\) pole in terms of the asymmetry parameters \(\mathcal{A}_f\), computed in the EW class:

\[ A_{\mathrm{FB}}^{0,\tau}=\frac 34 \mathcal{A}_e \mathcal{A}_\tau\,. \]

Lepton-flavour universality is not assumed.

Definition at line 160 of file AFBlepton.h.

Public Member Functions
	AFBtau (const StandardModel &SM_i)
	Constructor. More...

double	computeThValue ()
	The forward-backward asymmetry for \(e^+ e^-\to Z \to \tau^+ \tau^-\) at the \(Z\) pole, \(A^{0,\tau}_{\mathrm{FB}}\). More...

Public Member Functions inherited from ThObservable
double	getBinMax ()
	A get method to get the maximum value of the bin. More...

double	getBinMin ()
	A get method to get the minimum value of the bin. More...

const StandardModel &	getModel ()
	A get method to get the model. More...

const std::vector< std::string >	getParametersForObservable ()
	A get method to get the parameters for the specific observable. More...

void	setBinMax (double max)
	A set method to set the maximum value of the bin. More...

void	setBinMin (double min)
	A set method to set the minimum value of the bin. More...

void	setParametersForObservable (std::vector< std::string > parametersForObservable_i)
	A set method to get the parameters for the specific observable. More...

	ThObservable (const StandardModel &SM_i)
	Constructor. More...

	ThObservable (const ThObservable &orig)
	The copy constructor. More...

virtual	~ThObservable ()
	The default destructor. More...

Additional Inherited Members
Protected Attributes inherited from ThObservable
double	max
	the bin maximum. More...

double	min
	The bin minimum. More...

std::vector< std::string >	parametersForObservable
	a vector of parameter namesfor the specific observable More...

const StandardModel &	SM
	A reference to an object of StandardMode class. More...

Constructor & Destructor Documentation

◆ AFBtau()

AFBtau::AFBtau ( const StandardModel & SM_i )

inline

Constructor.

Parameters

[in] SM_i a reference to an object of type StandardModel

Definition at line 167 of file AFBlepton.h.

    : ThObservable(SM_i) 
    {
    };

Member Function Documentation

◆ computeThValue()

double AFBtau::computeThValue ( )

virtual

The forward-backward asymmetry for \(e^+ e^-\to Z \to \tau^+ \tau^-\) at the \(Z\) pole, \(A^{0,\tau}_{\mathrm{FB}}\).

Returns: \(A^{0,\tau}_{\mathrm{FB}}\)

Implements ThObservable.

Definition at line 30 of file AFBlepton.cpp.

{
    return SM.AFB(SM.getLeptons(SM.TAU));
}

The documentation for this class was generated from the following files:

Detailed Description

Public Member Functions

Additional Inherited Members

Constructor & Destructor Documentation

◆ AFBtau()

Member Function Documentation

◆ computeThValue()